12781552803796

素因数分解:

$2^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{918478931}}^1$

素因数の和:918479020

約数の個数: 36

約数和(自身を含む): 26386062758496

約数和(自身を除く): 13604509954700

約数列:

[1, 2, 4, 7, 14, 28, 49, 71, 98, 142, 196, 284, 497, 994, 1988, 3479, 6958, 13916, 918478931, 1836957862, 3673915724, 6429352517, 12858705034, 25717410068, 45005467619, 65212004101, 90010935238, 130424008202, 180021870476, 260848016404, 456484028707, 912968057414, 1825936114828, 3195388200949, 6390776401898, 12781552803796]

約数ペア:

[(1, 12781552803796), (2, 6390776401898), (4, 3195388200949), (7, 1825936114828), (14, 912968057414), (28, 456484028707), (49, 260848016404), (71, 180021870476), (98, 130424008202), (142, 90010935238), (196, 65212004101), (284, 45005467619), (497, 25717410068), (994, 12858705034), (1988, 6429352517), (3479, 3673915724), (6958, 1836957862), (13916, 918478931)]